RT Journal Article
SR Electronic
T1 Osseous metaplasia in a tubular adenoma of the colon
JF Journal of Clinical Pathology
JO J Clin Pathol
FD BMJ Publishing Group Ltd and Association of Clinical Pathologists
SP 220
OP 221
DO 10.1136/jcp.2004.020685
VO 58
IS 2
A1 W I Al-Daraji
A1 A Abdellaoui
A1 W D Salman
YR 2005
UL http://jcp.bmj.com/content/58/2/220.abstract
AB An 85 year old woman presented with a one month history of change in her bowel habits in the form of alternating diarrhoea and constipation. She also noted some rectal bleeding. Flexible sigmoidoscopy revealed a 1.5 cm polyp 30 cm from the anus. The polyp was removed during the sigmoidoscopy by electrocautery and sent for histological examination. The polyp was a tubular adenoma with mild dysplasia. The adenoma contained numerous foci of metaplastic bone. These consisted of irregular islands of mineralised osteoid bone rimmed by a layer of scattered osteoblasts. This is the first case of osseous metaplasia in a tubular adenoma of the colon to be reported.